CN1421537A - Zircaloy Alloy containing niobium for nuclear fuel cladding layer - Google Patents
Zircaloy Alloy containing niobium for nuclear fuel cladding layer Download PDFInfo
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- CN1421537A CN1421537A CN02150543A CN02150543A CN1421537A CN 1421537 A CN1421537 A CN 1421537A CN 02150543 A CN02150543 A CN 02150543A CN 02150543 A CN02150543 A CN 02150543A CN 1421537 A CN1421537 A CN 1421537A
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- niobium
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- zirconium
- iron
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- 239000010955 niobium Substances 0.000 title claims abstract description 84
- 229910052758 niobium Inorganic materials 0.000 title claims abstract description 81
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 229910001093 Zr alloy Inorganic materials 0.000 title claims abstract description 75
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 61
- 239000000956 alloy Substances 0.000 title claims abstract description 61
- 238000005253 cladding Methods 0.000 title abstract description 20
- 239000003758 nuclear fuel Substances 0.000 title abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 129
- 229910052742 iron Inorganic materials 0.000 claims abstract description 61
- 229910052718 tin Inorganic materials 0.000 claims abstract description 59
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 57
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 44
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 39
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000011733 molybdenum Substances 0.000 claims abstract description 37
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 33
- 239000010949 copper Substances 0.000 claims abstract description 32
- 229910052802 copper Inorganic materials 0.000 claims abstract description 30
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 28
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 43
- 239000001301 oxygen Substances 0.000 claims description 43
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 42
- 229910052726 zirconium Inorganic materials 0.000 claims description 42
- 239000010703 silicon Substances 0.000 claims description 32
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 16
- 230000007797 corrosion Effects 0.000 abstract description 13
- 238000005260 corrosion Methods 0.000 abstract description 13
- 239000011572 manganese Substances 0.000 abstract description 12
- 229910052748 manganese Inorganic materials 0.000 abstract description 10
- 239000000203 mixture Substances 0.000 abstract description 9
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract description 8
- 239000011135 tin Substances 0.000 description 56
- 230000003628 erosive effect Effects 0.000 description 43
- 239000011651 chromium Substances 0.000 description 33
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 30
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 30
- 229910052804 chromium Inorganic materials 0.000 description 30
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 28
- 229910052759 nickel Inorganic materials 0.000 description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 239000001257 hydrogen Substances 0.000 description 10
- 229910052739 hydrogen Inorganic materials 0.000 description 10
- GFUGMBIZUXZOAF-UHFFFAOYSA-N niobium zirconium Chemical compound [Zr].[Nb] GFUGMBIZUXZOAF-UHFFFAOYSA-N 0.000 description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 8
- 239000002131 composite material Substances 0.000 description 7
- 229910052720 vanadium Inorganic materials 0.000 description 7
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 7
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 6
- 238000005275 alloying Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 238000005098 hot rolling Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 229910052715 tantalum Inorganic materials 0.000 description 5
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 5
- 229910052714 tellurium Inorganic materials 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000005097 cold rolling Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 4
- 238000007669 thermal treatment Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052787 antimony Inorganic materials 0.000 description 3
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- IYNWNKYVHCVUCJ-UHFFFAOYSA-N bismuth Chemical compound [Bi].[Bi] IYNWNKYVHCVUCJ-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- -1 for example Chemical compound 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000010309 melting process Methods 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010013786 Dry skin Diseases 0.000 description 1
- 229910001257 Nb alloy Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910000756 V alloy Inorganic materials 0.000 description 1
- DFFYZEHBSGFELV-UHFFFAOYSA-N [Sn].[Fe].[Cr].[Ni] Chemical compound [Sn].[Fe].[Cr].[Ni] DFFYZEHBSGFELV-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- DTSBBUTWIOVIBV-UHFFFAOYSA-N molybdenum niobium Chemical compound [Nb].[Mo] DTSBBUTWIOVIBV-UHFFFAOYSA-N 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C16/00—Alloys based on zirconium
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/02—Fuel elements
- G21C3/04—Constructional details
- G21C3/06—Casings; Jackets
- G21C3/07—Casings; Jackets characterised by their material, e.g. alloys
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention presented herein relates to a niobium-containing zirconium alloy for use in nuclear fuel cladding. The Zr alloy of this invention with superior corrosion resistance is characterized as comprising an alloy composition as follows: niobium (Nb), in a range of 0.8 to 1.2 wt. %; one or more elements selected from the group consisting of iron (Fe), molybdenum (Mo), copper (Cu) and manganese (Mn), in a range of 0.1 to 0.3 wt. %, Nb, in a range of 1.3 to 1.8 wt. %; tin (Sn), in a range of 0.2 to 0.5 wt. %; one element selected from the group consisting of Fe, Mo, Cu and Mn, in a range of 0.1 to 0.3 wt. %; Nb, in a range of 0.3 to 1.2 wt. %; Sn, in a range of 0.4 to 1.2 wt. %; Fe, in a range of 0.1 to 0.5 wt. %; one element selected from the group consisting of Mo, Cu and Mn, in a range of 0.1 to 0.3 wt. %; O, in a range of 600 to 1400 ppm; Si, in a range of 80 to 120 ppm; and the balance being of Zr.
Description
The application is to be on March 14th, 2000 applying date, and name is called " niobium zirconium alloy that contains that is used for the nuclear fuel cladding ", and application number is dividing an application of 00102990.8 Chinese invention patent application.
The present invention relates to superior corrosion resistance can contain niobium zirconium (Zr) alloy.Particularly relate to the niobium zirconium alloy that contains that is used for nuclear fuel cladding or cladding.
Because its less neutron absorbs cross section, outstanding erosion resistance and excellent mechanical intensity, zirconium alloy is widely used as the cladding of fuel stick and the structural element of nuclear reactor.As everyone knows, niobium improves erosion resistance and the absorption that reduces hydrogen except being used to, and can also be used to improve physical strength and creep properties.Therefore, the zirconium alloy that is used for the nuclear fuel cladding of exploitation is characterized in that containing niobium recently.Yet, because the superfluous absorption that can influence erosion resistance and hydrogen of the content of niobium in the zirconium alloy, and the content of niobium surplus in the zirconium alloy depends on the processing conditions of alloy, therefore needs to optimize heat-treat condition.
As the prior art that contains niobium zirconium alloy that is used for the nuclear fuel cladding, US5,254,308 disclose a kind of zirconium alloy, have wherein reduced the content of tin, and contain niobium and iron to keep the intensity of this alloy.This alloy comprises the tin of 0.45-0.75 weight % (general 0.6 weight %), 0.4-0.53 the iron of weight % (general 0.45 weight %), 0.2-0.3 the chromium of weight % (general 0.25 weight %), 0.3-0.5 the niobium of weight % (general 0.45 weight %), 0.012-0.03 the nickel of weight % (general 0.02 weight %), the oxygen of the silicon of 50-200ppm (general 100ppm) and 1000-2000ppm (general 1600ppm).And iron/chromium ratio is 1.5, and the content of niobium decides according to the content of iron, and wherein the content of niobium can influence the absorption of hydrogen.The alloy that amount by control niobium, silicon, carbon and oxygen can obtain to have good corrosion resistance and intensity.
Absorb resistance in order to improve erosion resistance and hydrogen, US5,334,345 disclosed alloys comprise the tin of 1.0-2.0wt%, 0.07-0.70 the iron of weight %, the chromium of 0.05-0.15 weight %, the nickel of 0.16-0.40 weight %, 0.015-0.03 the niobium of weight % (general 0.015-0.20 weight %), the silicon of 0.002-0.05 weight % (general 0.015-0.05 weight %) and the oxygen of 900-1600ppm.
US5,336, mainly the amount of control tin, nitrogen and niobium in 690, the tin that comprises 0-1.5 weight % (general 0.6 weight %) in its disclosed alloy, 0-0.24 the iron of weight % (general 0.12 weight %), the chromium of 0-0.15 weight % (general 0.10 weight %), the nitrogen of 0-2300ppm, the silicon of 50-200ppm (general 100ppm), the oxygen of 0-1600ppm (general 1200ppm) and the niobium of 0-0.5 weight % (general 0.45 weight %).
Be disclosed in US5,211, zirconium alloy in 774 is developed ductility, creep strength and the erosion resistance that is used for improving in the neutron irradiation environment, this alloy comprises the tin of 0.8-1.2wt%, 0.2-0.5 the iron of weight % (general 0.35 weight %), 0.1-0.4 the chromium of weight % (general 0.25 weight %), the niobium of 0-0.6 weight %, the oxygen of the silicon of 50-200ppm (general 50ppm) and 90-1800ppm (general 1600ppm).Its purpose is the amount by control silicon, reduces the absorption of hydrogen, and reduces the degree along with the variation change in corrosion resistance of alloy processing conditions.
EP195,155 disclosed zirconium alloys comprise the tin of 0.1-0.3wt%, the iron of 0.05-0.2 weight %, the niobium of 0.05-0.4 weight %, chromium, nickel or the chromium of 0.03-0.1 weight % and nickel and one deck twin fuel cladding.In this alloy, the amount of iron+chromium+nickel can not surpass 0.25% and the content of oxygen at 300-1200ppm.
In order to improve in violent aflame erosion resistance, EP468,093 or US5,080,861 disclose a kind of zirconium alloy, comprise the niobium of 0-0.6wt%, the antimony of 0-0.2 weight %, 0-0.2 the tellurium of weight %, 0.5-1.0 the tin of weight %, the iron of 0.18-0.24 weight %, the chromium of 0.07-0.13 weight %, the oxygen of 900-2000ppm, the nickel of 0-70ppm and the carbon of 0-200ppm.In this alloy, sedimentary size is limited in the 1200-1800 dust, and can comprise that the bismuth (Bismuth) of maximum 0.2 weight % replaces tellurium (Tellurium) or antimony (Antimony).
EP345 proposes the zirconium alloy that a kind of and above-mentioned patent has similar composition in 531.This alloy comprises the niobium of 0-0.6wt%, the molybdenum of 0-0.1 weight %, the tin of 1.2-1.7 weight %, the iron of 0.07-0.24 weight %, the chromium of 0.05-0.13 weight %, the nickel of 0-0.08 weight % and the oxygen of 900-1800ppm.
EP532, the zirconium alloy in 830 has improved erosion resistance, the stability under irradiation, physical strength and improvement in creep resistance.This alloy comprises the niobium of 0-0.6wt%, the tin of 0.8-1.2 weight %, the iron of 0.2-0.5 weight % (general 0.35 weight %), the chromium of 0.1-0.4 weight % (general 0.25 weight %), the silicon of 50-200ppm (general 100ppm); And the oxygen of 900-1800ppm (general 1600ppm).
FR2, the zirconium alloy in 624,136 contains niobium and vanadium, and this alloy comprises the iron of 0.1-0.35wt%, the vanadium of 0.1-0.4 weight %, the oxygen of 0.05-0.3 weight %, the niobium of the tin of 0-0.25 weight % and 0-0.25 weight % and vanadium/iron is than greater than 0.5.This patent also discloses the best manufacture method of this alloy.
In order to improve the erosion resistance of physical strength and node, JP 62,180, and 027 disclosed zirconium alloy contains the niobium of 1.7-2.5wt%, the tin of 0.5-2.2 weight %, the iron of 0.04-1.0 weight %.In this alloy, the content of iron and molybdenum is limited to 0.2-1.0 weight %.
In order to improve the erosion resistance of node, JP 2,213, and 437 also disclose a kind of columbium containing alloy except zirconium-Xi-iron-vanadium alloy.This alloy contains the zirconium alloy of 0.25-1.5 weight %, the zirconium alloy of the niobium of 0.15-1.0 weight % and iron and 0.25-1.5 weight %, the niobium of 0.5-1.0 weight %, tin and the nickel of 0.05-0.15 weight %.
JP 62,207, and 835 disclose a kind of alloy based on zirconium-niobium-Xi, and this alloy contains the zirconium of 0.2 to 2.0 weight %, the niobium of 0.5 to 3.0 weight %, 900 to 2500ppm tin and oxygen.
JP 62,297,449 disclose a kind of alloy composite, in order to improve its erosion resistance, ductility and intensity, it contains the niobium of 1 to 2.5 weight %, 0.5 tin to 2.0 weight %, 0.1 to the molybdenum of 1.0 weight %, the scope of molybdenum+niobium is 1.5 to 2.5 weight %, and has adopted solution treatment at alpha+beta or β district.
At JP 62,180, a kind of zirconium alloy has been proposed in 027, except containing iron, it forms similar with above-mentioned patent.Alloy contains the niobium of 1.7 to 2.5 weight %, the tin of 0.5 to 2.0 weight %, and the molybdenum of the iron of 0.04 to 1.0 weight % and 0.2 to 1.0 weight %, wherein the total amount of iron and molybdenum is 0.2 to 1.0 weight %.
USP 4,863, and 685,4,986,975,5,024,809 and 5,026,516 disclose a kind of zirconium alloy, and this alloy contains the tin of 0.5 to 2.0 weight % and the solute element of other 0.5 to 1.0 weight %.Described alloy contains the oxygen of 0.09 to 0.16 weight %.Especially, at USP 4,863,685 disclosed alloys contain other solute element except tin, for example, and molybdenum, tellurium and their mixing, or niobium-tellurium, niobium-molybdenum.At USP 4,986,975 disclosed alloy composites contain solute element, for example copper of 0.24 to 0.40 weight %, nickel, iron etc., and copper contained in alloy should be greater than 0.05 weight %.
At USP5,024,809 and 5,026,516 disclosed alloys contain molybdenum, niobium, and telluriums etc. are as solute element.The amount of solute element is limited in 0.5 to 1.0 weight %, with USP 4,863,685 identical.Add the bismuth or the bismuth+tin of 0.5 to 2.5% weight.
USP 4,938, and 920 disclose a kind of alloy, compare with zirconium alloy-4, and its erosion resistance is better, and wherein, the amount of tin is reduced to 0 to 0.8 weight %, and vanadium is 0 to 0.3 weight %, and niobium is 0 to 1 weight %.In this alloy, add the iron of 0.2 to 0.8 weight %, the chromium of 0 to 0.4 weight %, the total amount of iron, chromium and vanadium is limited in 0.25 to 1.0 weight %.In addition, the amount of oxygen is 1000 to 1600 ppm.Alloy contains the oxygen of chromium-0.14 weight % of iron-0.11 weight % of the tin-0.22 weight % of 0.8 weight %, 0.4 the oxygen of weight % niobium-0.67 weight % iron-0.33 weight % chromium-0.15 weight %, 0.75 the oxygen of the iron-0.15% vanadium-0.1 weight % of the oxygen of the vanadium-0.1 weight % of the iron of weight %-0.25 weight % or the tin-0.2 weight % of 0.25 weight %, under 400 ℃ of steam conditions, showed in 200 days than the erosion resistance of zirconium alloy-4 high 60% and with the similar tensile strength of zirconium alloy-4.
At USP 4,963,323 or JP 1,188,646 in the alloy composition of previous zirconium alloy-4 is changed, develop a kind of material that is used for the nuclear fuel cladding with erosion resistance of improvement.That is, the amount with tin reduces.Add niobium by way of compensation, the amount of nitrogen is lower than 60ppm in the control alloy.Zirconium alloy contains the tin of 0.2 to 1.15 weight %, the iron of 0.19 to 0.6 weight % (preferred 0.19 to 0.24 weight %), and the chromium of 0.07 to 0.4 weight % (preferred 0.07 to 0.13 weight %), the nickel of 0.05 big 0.5 weight % is lower than the nitrogen of 60ppm.
In addition, at USP 5,017, in 336 by adding the composition that niobium, tantalum, vanadium and molybdenum change zirconium alloy-4.Particularly, zirconium alloy contains the tin of 0.2 to 0.9 weight %, the iron of 0.18 to 0.6 weight %, the chromium of 0.07 to 0.4 weight %, the niobium of 0.05 to 0.5 weight %, the tantalum of 0.01 to 0.2 weight %, the vanadium of 0.05 to 1 weight %, the molybdenum of 0.05 to 1 weight %.
USP 5,196, and 163 or JP 63,035,751 disclosed zirconium alloys, its composition is also similar substantially to zirconium alloy-4, contains tantalum and tin, iron and nickel, the optional niobium that contains.Alloy contains the tin of 0.2 to 1.15 weight %, 0.19 iron (preferred 0.19 to 0.24 weight %) to 0.6 weight %, 0.07 to the chromium (preferred 0.07 to 0.13 weight %) of 0.4 weight %, the tantalum of 0.01 to 0.2 weight %, the niobium of 0.05 to 0.5 weight % and the nitrogen that is lower than 60 ppm.
At FRP 2,769, the composition of disclosed zirconium alloy and above-mentioned alloy is similar in 637.Particularly, this alloy contains the tin of 0.2 to 1.7 weight %, the iron of 0.18 to 0.6 weight %, the chromium of 0.07 to 0.4 weight %, the tantalum of the niobium of 0.05 to 1.0 weight % and optional 0.01 to 0.1 weight %, and the nitrogen that is lower than 60ppm.In addition, the thermal treatment variable depends on described composition.
USP 5,560, and 790 disclose the niobium that contains 0.5 to 1.5 weight %, 0.9 to the tin of 1.5 weight %, the iron of 0.3 to 0.6 weight %, the chromium of 0.005 to 0.2 weight %, 0.005 to the carbon of 0.04 weight %, the silicon of the oxygen of 0.05 to 0.15 weight % and 0.005 to 0.015 weight %.Restriction zirconium (niobium, iron), 0.20 to 0.40 micron of the distance between zirconium (iron, chromium, niobium) and (zirconium, niobium) iron precipitate, the volume of restriction iron precipitate is 60% of a throw out cumulative volume.
JP 5,214, and 500 openly are used for improving the alloy composite of erosion resistance and throw out size.This alloy composite contains the tin of 0.5 to 2.0 weight %, the iron of 0.05 to 0.3 weight %, the chromium of 0.05 to 0.3 weight %, 0.05 nickel to 0.15 weight %, 0.05 to the oxygen of 0.2 weight %, the niobium of 0 to 1.2 weight % and the zirconium of its surplus, sedimentary size is limited in being lower than 0.5 micron.
JP 8,086, and 954 disclose at α phase hot and cold and roll thermal treatment variable in the process, zirconium alloy contains the tin of 0.4 to 1.7 weight %, the iron of 0.25 to 0.75 weight %, the chromium of 0.05 to 0.30 weight %, the niobium of the nickel of 0 to 0.10 weight % and 0 to 1.0 weight %.
JP 8,114, disclose the twin zirconium alloy in 688, and its internal layer is formed by tin-iron-chromium-nickel alloy, contains the niobium of 0.05 to 0.75 weight % and the silicon of 0 to 0.02 weight %, are used for reducing stress corrosion crack and hydrogen absorbs the anticaustic that causes.
JP 9,111, and 379 zirconium alloys that disclose contain the tin of 0.5 to 1.7 weight %, 0.1 to the iron of 0.3 weight %, the chromium of 0.05 to 0.2 weight %, the copper of 0.05 to 0.2 weight %, 0.01 to the niobium of 1.0 weight %, the nickel of 0.01 to 0.20 weight %, this alloy can prevent the tubercle corrosion.
JP 10,273, and 746 disclose the workability with improvement and the zirconium alloy of erosion resistance, and this alloy contains the tin of 0.3 to 0.7 weight %, the iron of 0.2 to 0.25 weight %, the niobium of the chromium of 0.1 to 0.15 weight % and 0.05 to 0.20 weight %.
In EP 198,570, the amount of the niobium in zirconium-niobium alloys is limited in 1 to 2.5 weight %, and has advised heat treated temperature.In this patent, containing second of niobium mutually should uniform distribution, and size should be lower than 800 dusts.
USP 5,125, and disclosed alloy contains the niobium of 0.5 to 2.0 weight % in 985, the tin of 0.7 to 1.5 weight %, and chosen from Fe, one or more elements of nickel and chromium, its amount is 0.07 to 0.28 weight %.Can control creep strength according to manufacture method.Here, this manufacture method is characterised in that and introduces β-quenching heat treatment.
As mentioned above, the zirconium alloy that is used for the nuclear fuel cladding in the prior art is characterised in that and contains niobium, to improve erosion resistance.Yet, consider abominable operating environment, use zirconium alloy just to be restricted as the nuclear fuel cladding.Therefore, the zirconium alloy that just needs a kind of advanced person of development with outstanding erosion resistance and higher intensity.
We, the present inventor is being engaged in the erosion resistance of enhancing novel zirconium alloy-4 always, a kind of zirconium alloy that contains niobium thereby develop, by the interpolation small amounts of iron, molybdenum, copper, manganese wait the erosion resistance of improving zirconium alloy.
The purpose of this invention is to provide novel zirconium alloy composition with outstanding erosion resistance.
Another object of the present invention provides the zirconium alloy that is used for the nuclear fuel cladding.
In order to achieve the above object, the invention provides the niobium zirconium alloy that contains of the outstanding erosion resistance of having of a kind of advanced person.
Particularly, the invention provides the zirconium alloy that contains niobium; Chosen from Fe, molybdenum, copper, one or more elements of manganese and chromium; Oxygen; Silicon; Zirconium with its surplus.In addition, the optional tin that contains.
In embodiments of the invention, provide a kind of zirconium alloy, this alloy contains the niobium of 0.8 to 1.2 weight %; Chosen from Fe, molybdenum, one or more elements of copper and manganese, its content respectively are 0.1 to 0.3 weight %; 600 to 1400ppm oxygen; 80 to 120ppm silicon; Zirconium with its surplus.
In another embodiment of the invention, a kind of zirconium alloy also is provided, this alloy contains the niobium of 1.3 to 1.8 weight %; 0.2 tin (Sn) to 0.5 weight %; A kind of chosen from Fe, molybdenum, the element of copper and manganese, its content are 0.1 to 0.3 weight %; 600 to 1400ppm oxygen; 80 to 120ppm silicon; Zirconium with its surplus.
In another one embodiment of the present invention, a kind of zirconium alloy also is provided, this alloy contains the niobium of 1.3 to 1.8 weight %; 0.2 tin to 0.5 weight %; 0.1 to the iron of 0.3 weight %, a kind of chromium (Cr) that is selected from, molybdenum, the element of copper and manganese, its content are 0.1 to 0.3 weight %; 600 to 1400ppm oxygen; 80 to 120ppm silicon; Zirconium with its surplus.
In another one embodiment of the present invention, a kind of zirconium alloy also is provided, this alloy contains the niobium of 0.3 to 1.2 weight %; 0.4 tin to 1.2 weight %; 0.1 to the iron of 0.5 weight %, a kind of molybdenum that is selected from, the element of copper and manganese, its content are 0.1 to 0.3 weight %; 600 to 1400ppm oxygen; 80 to 120ppm silicon; Zirconium with its surplus.
The description of preferred embodiment
By comprising a spot of iron, molybdenum, copper, manganese etc. have improved physical strength and erosion resistance, the especially erosion resistance that contains niobium zirconium alloy of the present invention.
For high combustion fuel cladding, main consider that corrosion quickens and irradiation creep, especially the former.Therefore, the present invention mainly is intended to improve the erosion resistance of zirconium alloy.
When selecting alloying element, to consider the neutron effect of zirconium, production cost, workability and fusion characteristic.In addition, based on present every kind of alloying element of publication document detailed assessment to erosion resistance, the hydrogen absorptivity, the influence of mechanical characteristics and creep properties, also detailed assessment the influence of other element.Amount according to above-mentioned decision zirconium alloy element and every kind of alloying element.Then, the inventor has constructed and has had outstanding erosion resistance and high-intensity zirconium-alloy composite.Particularly, by adding a spot of iron, molybdenum, copper, manganese etc. have improved erosion resistance.
The invention provides a kind of zirconium alloy, this alloy contains the niobium of 0.8 to 1.2 weight %; Chosen from Fe, molybdenum, one or more elements of copper and manganese, content respectively are 0.1 to 0.3 weight %; 600 to 1400ppm oxygen; 80 to 120ppm silicon; Zirconium with its surplus.
This alloy preferably contains, the niobium of 0.8 to 1.2 weight %; A kind of chosen from Fe, molybdenum, the element of copper and manganese, its content are 0.1 to 0.3 weight %; 600 to 1400ppm oxygen; 80 to 120ppm silicon; Zirconium with its surplus.
In addition, this alloy contains the niobium of 0.8 to 1.2 weight %; 0.1 iron to 0.3 weight %; A kind of molybdenum that is selected from, the element of copper and manganese, its content are 0.1 to 0.3 weight %; 600 to 1400ppm oxygen; 80 to 120ppm silicon; Zirconium with its surplus.
In addition, the present invention also provides a kind of zirconium alloy, contains the niobium of 1.3 to 1.8 weight %; 0.2 tin (Sn) to 0.5 weight %; A kind of chosen from Fe, molybdenum, the element of copper and manganese, its content are 0.1 to 0.3 weight %; 600 to 1400ppm oxygen; 80 to 120ppm silicon; Zirconium with its surplus.
This zirconium alloy preferably contains the niobium of 1.3 to 1.8 weight %; 0.2 tin to 0.5 weight %; 0.1 iron to 0.3 weight %; 600 to 1400ppm oxygen; 80 to 120ppm silicon; Zirconium with its surplus.
In addition, this zirconium alloy contains the niobium of 1.3 to 1.8 weight %; 0.2 tin to 0.5 weight %; A kind of molybdenum that is selected from, the element of copper and manganese, its content are 0.1 to 0.3 weight %; 600 to 1400ppm oxygen; 80 to 120ppm silicon; Zirconium with its surplus.
In addition, the present invention also provides a kind of zirconium alloy, and this alloy contains the niobium of 1.3 to 1.8 weight %; 0.2 tin to 0.5 weight %; 0.1 to the iron of 0.3 weight %, a kind of chromium (Cr) that is selected from, molybdenum, the element of copper and manganese, its content are 0.1 to 0.3 weight %; 600 to 1400ppm oxygen; 80 to 120ppm silicon; Zirconium with its surplus.
In addition, the present invention also provides a kind of zirconium alloy, and this alloy contains the niobium of 0.3 to 1.2 weight %; 0.4 tin to 1.2 weight %; 0.1 to the iron of 0.5 weight %, a kind of molybdenum that is selected from, the element of copper and manganese, its content are 0.1 to 0.3 weight %; 600 to 1400ppm oxygen; 80 to 120ppm silicon; Zirconium with its surplus.
This zirconium alloy preferably contains the niobium of 0.6 to 1.0 weight %; 0.4 tin to 0.8 weight %; 0.1 to the iron of 0.5 weight %, a kind of molybdenum that is selected from, the element of copper and manganese, its content are 0.1 to 0.3 weight %; 600 to 1400ppm oxygen; 80 to 120ppm silicon; Zirconium with its surplus.
In addition, this zirconium alloy contains the niobium of 0.8 to 1.2 weight %; 0.8 tin to 1.2 weight %; 0.2 to the iron of 0.4 weight %, a kind of molybdenum that is selected from, the element of copper and manganese, its content are 0.1 to 0.3 weight %; 600 to 1400ppm oxygen; 80 to 120ppm silicon; Zirconium with its surplus.
In addition, this zirconium alloy contains the niobium of 0.3 to 0.5 weight %; 0.6 tin to 1.0 weight %; 0.2 to the iron of 0.5 weight %, the molybdenum of 0.1 to 0.3 weight %; 600 to 1400ppm oxygen; 80 to 120ppm silicon; Zirconium with its surplus.
Describe the characteristic and the criticality of the compositing range of each alloying element of the present invention below in detail.
(1) niobium (Nb)
β-the phase of known niobium energy stabilised zirconia it is believed that the erosion resistance and the workability of this material are improved when adding is lower than the niobium of 0.5 weight %.Yet also the someone thinks, when adding the niobium of 1.0 weight %, zirconium alloy has outstanding erosion resistance.In addition, known niobium can improve hydrogen absorptivity and intensity.Because the alloy that contains the higher concentration niobium is to the heat-treat condition sensitivity, the niobium of Jia Ruing is less than 1.8 weight % in the present invention.
(2) tin (Sn)
α-the phase of tin stabilised zirconia, and the intensity of increase zirconium alloy.Only contain a spot of tin, just can not reach required intensity and improvement in creep resistance.On the contrary, preferably reduce the amount of tin based on erosion resistance.The inventor considers that simultaneously intensity and erosion resistance determined the amount of tin.The amount that has particularly reduced tin is to improve erosion resistance, and the alloying element that needs simultaneously to add other replacement replaces tin to keep intensity.The amount of tin is in the present invention controlled based on the amount of niobium, and the amount of the tin of Jia Ruing is less than 1.2% in the present invention.
(3) iron (Fe)
Known iron can increase erosion resistance, and it is believed that when adding the iron of 0.1 to 0.6 weight % can increase erosion resistance usually.In addition, known iron is influential to mechanical characteristics and hydrogen absorptivity.Therefore, the amount at iron of the present invention is limited in 0.1 to 0.5 weight %.
(4) chromium (Cr)
Known chromium can increase erosion resistance as iron, preferably measures at chromium of the present invention and is limited in 0.1 to 0.3 weight %.
(5) molybdenum (Mo)
Known molybdenum can improve erosion resistance and intensity.The amount of molybdenum influences erosion resistance less than 0.05 weight %, influences intensity greater than 0.5 weight %.Therefore, the preferred molybdenum that adds is 0.1 to 0.3 weight %.
(6) copper (Cu) and manganese (Mn)
Known copper and manganese can improve erosion resistance, especially in the amount that adds more after a little while.Therefore, the amount of copper and manganese respectively is limited in 0.1 to 0.3 weight %.
(7) oxygen (O)
By solution hardening technology, oxygen can improve the physical strength of alloy.Yet workability just reduces when a large amount of adding oxygen.Therefore, add 600 usually to the oxygen of 1400ppm.
(8) silicon (Si)
Add 80 and arrive the silicon of 120ppm to reduce the transit time of hydrogen absorptivity and delay erosion rate.
The niobium zirconium alloy that contains of the present invention has superior corrosion resistance.Therefore, zirconium alloy of the present invention can be used as the fuel stick cladding, spacer web and other structural element at nuclear power plant reactor core.Use zirconium alloy of the present invention to make the material of said structure element, might reach integrity, increase the service life at the nuclear fuel rod of high-temp combustion.
The present invention may be better understood according to the following examples, but this embodiment just is used for describing, rather than limit the scope of the invention.
Embodiment 1-22: the preparation of zirconium alloy 1-22
Preparation has the zirconium alloy that following table 1 is formed.Following table 1 has been listed the chemical constitution of the zirconium alloy of measuring by chemical analysis of the present invention.
The component of table 1 zirconium alloy
| Numbering | Composition (weight %) | |||||||||
| Niobium | Tin | Iron | Chromium | Manganese | Copper | Molybdenum | Oxygen * | Silicon * | Zirconium ** | |
| 1 | ?0.99 | ??- | ??- | ??- | ??- | ??- | ??- | ??1108 | ?112 | Its surplus |
| 2 | ?1.05 | ??- | ??- | ??- | ??0.12 | ??- | ??- | ??998 | ?102 | Its surplus |
| 3 | ?1.08 | ??- | ??- | ??- | ??- | ??0.11 | ??- | ??1005 | ?115 | Its surplus |
| 4 | ?1.11 | ??- | ??- | ??- | ??- | ??- | ??0.13 | ??995 | ?92 | Its surplus |
| 5 | ?1.01 | ??- | ??0.10 | ??- | ??0.17 | ??- | ??- | ??1200 | ?105 | Its surplus |
| 6 | ?0.97 | ??- | ??0.15 | ??- | ??- | ??0.16 | ??- | ??1016 | ?113 | Its surplus |
| 7 | ?0.99 | ??- | ??0.11 | ??- | ??- | ??- | ??0.14 | ??997 | ?98 | Its surplus |
| 8 | ?1.62 | ??0.39 | ??0.14 | ??- | ??- | ??- | ??- | ??1028 | ?120 | Its surplus |
| 9 | ?1.74 | ??0.43 | ??- | ??- | ??0.16 | ??- | ??- | ??1267 | ?87 | Its surplus |
| 10 | ?1.38 | ??0.44 | ??- | ??- | ??- | ??0.13 | ??- | ??989 | ?99 | Its surplus |
| 11 | ?1.42 | ??0.46 | ??- | ??- | ??- | ??- | ??0.12 | ??1111 | ?106 | Its surplus |
| 12 | ?1.52 | ??0.39 | ??0.19 | ??0.11 | ??- | ??- | ??- | ??1101 | ?113 | Its surplus |
| 13 | ?1.75 | ??0.38 | ??0.18 | ??- | ??0.13 | ??- | ??- | ??992 | ?117 | Its surplus |
| 14 | ?1.56 | ??0.44 | ??0.16 | ??- | ??- | ??0.15 | ??- | ??1109 | ?89 | Its surplus |
| 15 | ?1.39 | ??0.37 | ??0.17 | ??- | ??- | ??- | ??0.14 | ??1227 | ?101 | Its surplus |
| 16 | ?0.82 | ??0.58 | ??0.14 | ??- | ??0.12 | ??- | ??- | ??978 | ?114 | Its surplus |
| 17 | ?0.79 | ??0.61 | ??0.17 | ??- | ??- | ??0.15 | ??- | ??968 | ?88 | Its surplus |
| 18 | ?0.83 | ??0.59 | ??0.19 | ??- | ??- | ??- | ??0.14 | ??1005 | ?97 | Its surplus |
| 19 | ?0.99 | ??1.11 | ??0.31 | ??- | ??0.14 | ??- | ??- | ??1057 | ?89 | Its surplus |
| 20 | ?0.97 | ??1.08 | ??0.33 | ??- | ??- | ??0.15 | ??- | ??1205 | ?114 | Its surplus |
| 21 | ?1.02 | ??1.01 | ??0.32 | ??- | ??- | ??- | ??0.14 | ??1134 | ?102 | Its surplus |
| 22 | ?0.42 | ??0.85 | ??0.43 | ??- | ??- | ??- | ??0.19 | ??1150 | ?110 | Its surplus |
| *Unit: ppm **Zirconium+impurity: remaining amount | ||||||||||
Manufacturing processed is as follows.
(1) preparation of ingot metal
Use vacuum arc fusion (VAR) method that the alloy composite of listing in the table 1 is melted in the 400 g metallic beads and prepare ingot metal.Repeat this technology 5 times, to prevent the inhomogeneous dispersion of impurity segregation and alloying element.
In the water-cooled copper stove of diameter 70mm, vacuum tightness about 2 * 10
-1Holder, electric current 1,000A and cooling water pressure 1kgf/cm
2Condition under carry out melting process.Furnace chamber pressure is reduced to 1 * 10
-5Hold in the palm, and be full of furnace chamber, avoid alloy oxidation in melting process with argon gas.After the fusing, keep furnace chamber pressure 1 * 10
-4Holder by argon gas stream cooling furnace chamber, avoids sample surfaces oxidized in process of cooling.
(2) β-heat treated
By the ingot metal solution treatment that is in β-district is carried out β-heat treated with the homogenizing alloy composite.The stainless steel that with thickness is 1mm carries out cladding with sample, 1050 ℃ of heating 20 minutes, cools off in water then, to avoid oxidation sample.Then, with sample 80 ℃ of thorough dryings 24 hours, to remove water residual in cladding.
(3) hot rolling and thermal treatment
Carry out hot rolling by the roller mill that uses 100 tons of sizes.With sample 650 ℃ preheat 20 minutes after, make its thickness reduce 70% a passage backing.After the hot rolling, remove cladding, use pickle solution (HF: dense HNO
3: H
2O=5: 45: 50 (v/v/v)) removes the zone of oxidation that in β-processing or hot rolling, forms.In addition, after pickling, use electric wire brush complete mechanical to remove the residual oxide compound of part.
(4) cold rolling and thermal treatment
Sample was annealed 30 minutes down at 590 ℃,, and prevent that sample from rupturing when cold working with residual strain after the elimination hot rolling.The backing machine that at first uses 70 tons of sizes reduces about 0.5mm (thickness reduces about 50%) at a passage with its thickness with sample is cold rolling.After for the first time cold rolling, sample annealing is made it at 580 ℃ of recrystallizations.Carry out twice cold rolling, thickness reduces by 45% and 50% respectively.At last 470 ℃ of heat treated sample 3 hours to discharge stress.
EXPERIMENTAL EXAMPLE: corrosion detects
Sample with zirconium alloy sheet preparation 15 * 25 * 0.7mm is polished to 800 fineness, and with solution (HF: dense HNO
3: H
2O=5: 45: 50 (v/v/v)) pickling.
In 360 ℃ of aqueous vapors of autoclave (189.9Mpa), the LiOH aqueous solution of 360 ℃ of 70ppm and 400 ℃ of steam (10.3Mpa) carried out corrosion measurement down in 100-250 days.By measuring the weightening finish qualitative assessment erosion rate of corrosion sample.The zirconium alloy-4 that use is used as the routine of nuclear fuel cladding as a comparison.Corrosion results is listed in the table below in 2.
Table 2 corrosion detects
| Numbering | Weightening finish (mg/dm 2) | ||||||||
| 360 ℃ of water | 400 ℃ of steam | 360 ℃ of LiOH aqueous solution | |||||||
| 100 days | 120 days | 250 days | 100 days | 120 days | 250 days | 100 days | 120 days | 250 days | |
| ?1 | ?39 | ?42 | ?85 | ?74 | ?92 | ?155 | ?44 | ?50 | ?81 |
| ?2 | ?40 | ?41 | ?82 | ?80 | ?83 | ?140 | ?42 | ?49 | ?82 |
| ?3 | ?36 | ?45 | ?69 | ?70 | ?80 | ?141 | ?39 | ?47 | ?70 |
| ?4 | ?42 | ?49 | ?72 | ?72 | ?88 | ?133 | ?47 | ?52 | ?82 |
| ?5 | ?42 | ?46 | ?75 | ?79 | ?90 | ?152 | ?46 | ?50 | ?78 |
| ?6 | ?41 | ?45 | ?69 | ?81 | ?89 | ?147 | ?48 | ?46 | ?69 |
| ?7 | ?38 | ?44 | ?74 | ?72 | ?101 | ?136 | ?42 | ?44 | ?86 |
| ?8 | ?37 | ?49 | ?82 | ?84 | ?98 | ?151 | ?40 | ?49 | ?92 |
| ?9 | ?38 | ?52 | ?81 | ?82 | ?104 | ?164 | ?41 | ?54 | ?94 |
| ?10 | ?35 | ?50 | ?79 | ?76 | ?108 | ?174 | ?40 | ?55 | ?82 |
| ?11 | ?37 | ?54 | ?77 | ?82 | ?107 | ?142 | ?42 | ?55 | ?84 |
| ?12 | ?45 | ?52 | ?84 | ?94 | ?105 | ?159 | ?48 | ?57 | ?90 |
| ?13 | ?44 | ?51 | ?86 | ?92 | ?99 | ?144 | ?46 | ?54 | ?92 |
| ?14 | ?42 | ?53 | ?88 | ?93 | ?97 | ?135 | ?49 | ?53 | ?88 |
| ?15 | ?46 | ?50 | ?76 | ?92 | ?98 | ?132 | ?50 | ?58 | ?100 |
| ?16 | ?37 | ?45 | ?91 | ?95 | ?110 | ?162 | ?44 | ?52 | ?109 |
| ?17 | ?37 | ?48 | ?102 | ?92 | ?109 | ?183 | ?40 | ?49 | ?121 |
| ?18 | ?33 | ?50 | ?99 | ?97 | ?114 | ?177 | ?55 | ?56 | ?113 |
| ?19 | ?35 | ?45 | ?82 | ?85 | ?101 | ?192 | ?40 | ?52 | ?104 |
| ?20 | ?34 | ?43 | ?85 | ?90 | ?95 | ?168 | ?44 | ?51 | ?121 |
| ?21 | ?35 | ?49 | ?88 | ?92 | ?92 | ?171 | ?46 | ?52 | ?105 |
| ?22 | ?32 | ?46 | ?77 | ?62 | ?77 | ?142 | ?36 | ?48 | ?120 |
| Zirconium alloy-4 | ?50 | ?74 | ?94 | ?97 | ?129 | ?225 | ?53 | ?63 | ?136 |
Can see that from table 2 compare with existing zirconium alloy-4, zirconium alloy of the present invention shows erosion resistance preferably.Under 360 ℃ of aqueous vapors of autoclave 100 days, 120 days and 250 days, the weightening finish that is subjected to corrosive zirconium alloy-4 was 50,74 respectively, 94mg/dm
2On the contrary, corrosive zirconium alloy weightening finish of the present invention is lower than zirconium alloy-4.Can determine, except zirconium alloy of the present invention aqueous vapor also shows outstanding erosion resistance in the LiOH aqueous solution and steam.Particularly, when experimental period increased, zirconium alloy-4 also increased with the weightening finish difference of zirconium alloy of the present invention thereupon.In other words, compare with existing zirconium alloy-4, heavy alloyed erosion resistance of the present invention is longer.
Described the present invention for example, be to be understood that the term that uses is for characteristic of the present invention is described, rather than will limit the present invention.Can carry out many modifications and variations to the present invention according to the above description.Therefore, be to be understood that and in claims scope to be examined, also can carry out the present invention in addition, and not as specifically described.
Claims (4)
1. zirconium alloy is characterized in that this alloy contains following component:
0.3 niobium to 1.2 weight %;
0.4 tin to 1.2 weight %;
0.1 to the iron of 0.5 weight %,
A kind of molybdenum that is selected from, the element of copper and manganese, its content are 0.1 to 0.3 weight %;
600 to 1400ppm oxygen;
80 to 120ppm silicon;
Zirconium with its surplus.
2. zirconium alloy as claimed in claim 1 is characterized in that this alloy contains following component:
0.6 niobium to 1.0 weight %;
0.4 tin to 0.8 weight %;
0.1 to the iron of 0.3 weight %,
A kind of molybdenum that is selected from, the element of copper and manganese, its content are 0.1 to 0.3 weight %;
600 to 1400ppm oxygen;
80 to 120ppm silicon;
Zirconium with its surplus.
3. zirconium alloy as claimed in claim 1 is characterized in that this alloy contains following component:
0.8 niobium to 1.2 weight %;
0.8 tin to 1.2 weight %;
0.2 to the iron of 0.4 weight %,
A kind of molybdenum that is selected from, the element of copper and manganese, its content are 0.1 to 0.3 weight %;
600 to 1400ppm oxygen;
80 to 120ppm silicon;
Zirconium with its surplus.
4. zirconium alloy as claimed in claim 1 is characterized in that this alloy contains following component:
0.3 niobium to 0.5 weight %;
0.6 tin to 1.0 weight %;
0.2 to the iron of 0.5 weight %,
0.1 molybdenum to 0.3 weight %;
600 to 1400ppm oxygen;
80 to 120ppm silicon;
Zirconium with its surplus.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990051889A KR100334252B1 (en) | 1999-11-22 | 1999-11-22 | Niobium-containing zirconium alloys for nuclear fuel cladding |
| KR9951889 | 1999-11-22 |
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| CNB021475970A Expired - Lifetime CN1166795C (en) | 1999-11-22 | 2000-03-14 | Niobium and zirconium-contg. alloy for covering of naclear fuel |
| CNB021505438A Expired - Lifetime CN1166796C (en) | 1999-11-22 | 2000-03-14 | Zircaloy alloy containing niobium for nuclear fuel cladding layer |
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| CN101512671B (en) * | 2006-08-24 | 2013-04-10 | 威斯丁豪斯电气瑞典有限公司 | Water reactor fuel cladding tube |
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| KR100441562B1 (en) * | 2001-05-07 | 2004-07-23 | 한국수력원자력 주식회사 | Nuclear fuel cladding tube of zirconium alloys having excellent corrosion resistance and mechanical properties and process for manufacturing thereof |
| KR100461017B1 (en) * | 2001-11-02 | 2004-12-09 | 한국수력원자력 주식회사 | Method for preparing niobium-containing zirconium alloys for nuclear fuel cladding tubes having the excellent corrosion resistance |
| US10221475B2 (en) | 2004-03-23 | 2019-03-05 | Westinghouse Electric Company Llc | Zirconium alloys with improved corrosion/creep resistance |
| US9284629B2 (en) | 2004-03-23 | 2016-03-15 | Westinghouse Electric Company Llc | Zirconium alloys with improved corrosion/creep resistance due to final heat treatments |
| RU2337417C1 (en) * | 2004-06-01 | 2008-10-27 | Арева Нп | Method for nuclear reactor operation and application of special rod shell alloy for reduction of damage caused by interaction between pellets and shell |
| FR2874119B1 (en) * | 2004-08-04 | 2006-11-03 | Framatome Anp Sas | METHOD FOR MANUFACTURING A FUEL SINK TUBE FOR A NUCLEAR REACTOR, AND A TUBE THUS OBTAINED |
| KR100733701B1 (en) * | 2005-02-07 | 2007-06-28 | 한국원자력연구원 | Zr-based Alloys Having Excellent Creep Resistance |
| JP4982654B2 (en) * | 2005-03-23 | 2012-07-25 | ウエスチングハウス・エレクトリック・カンパニー・エルエルシー | Zirconium alloy with improved corrosion resistance and method for producing zirconium alloy with improved corrosion resistance |
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| US4649023A (en) * | 1985-01-22 | 1987-03-10 | Westinghouse Electric Corp. | Process for fabricating a zirconium-niobium alloy and articles resulting therefrom |
| US5196163A (en) | 1986-07-29 | 1993-03-23 | Mitsubishi Materials Corporation | Highly corrosion-resistant zirconium alloy for use as nuclear reactor fuel cladding material |
| US5211774A (en) * | 1991-09-18 | 1993-05-18 | Combustion Engineering, Inc. | Zirconium alloy with superior ductility |
| SE9103052D0 (en) * | 1991-10-21 | 1991-10-21 | Asea Atom Ab | Zirconium-based alloys carry components in nuclear reactors |
| US5254308A (en) | 1992-12-24 | 1993-10-19 | Combustion Engineering, Inc. | Zirconium alloy with improved post-irradiation properties |
| DE59307895D1 (en) | 1993-03-04 | 1998-02-05 | Vni Skij I Neorganiceskich Mat | ZIRCON-BASED MATERIAL, PART MADE THEREOF FOR USE IN THE ACTIVE ZONE OF A NUCLEAR REACTOR AND METHOD FOR PRODUCING THIS PART |
| JPH08253828A (en) * | 1995-03-14 | 1996-10-01 | Sumitomo Metal Ind Ltd | Highly corrosion resistant zirconium alloy |
| KR960041386A (en) * | 1995-05-09 | 1996-12-19 | 황선근 | Zirconium Alloy Compositions and Manufacturing Methods Thereof |
| FR2737335B1 (en) * | 1995-07-27 | 1997-10-10 | Framatome Sa | TUBE FOR NUCLEAR FUEL ASSEMBLY AND METHOD FOR MANUFACTURING SUCH A TUBE |
| JPH09227973A (en) * | 1996-02-16 | 1997-09-02 | Sumitomo Metal Ind Ltd | High corrosion resistant zirconium alloy and alloy tube |
| JP3389018B2 (en) * | 1996-08-02 | 2003-03-24 | 株式会社ジルコプロダクツ | Zirconium alloy with excellent hydrogen absorption resistance |
-
1999
- 1999-11-22 KR KR1019990051889A patent/KR100334252B1/en active IP Right Grant
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2000
- 2000-03-08 US US09/521,645 patent/US6261516B1/en not_active Expired - Lifetime
- 2000-03-14 CN CN00102990A patent/CN1109764C/en not_active Expired - Lifetime
- 2000-03-14 CN CNB021475970A patent/CN1166795C/en not_active Expired - Lifetime
- 2000-03-14 CN CNB021505438A patent/CN1166796C/en not_active Expired - Lifetime
- 2000-03-14 JP JP2000071204A patent/JP3407876B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101512671B (en) * | 2006-08-24 | 2013-04-10 | 威斯丁豪斯电气瑞典有限公司 | Water reactor fuel cladding tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1109764C (en) | 2003-05-28 |
| CN1166796C (en) | 2004-09-15 |
| CN1420190A (en) | 2003-05-28 |
| KR100334252B1 (en) | 2002-05-02 |
| JP2001181761A (en) | 2001-07-03 |
| JP3407876B2 (en) | 2003-05-19 |
| CN1166795C (en) | 2004-09-15 |
| CN1305018A (en) | 2001-07-25 |
| KR20010047592A (en) | 2001-06-15 |
| US6261516B1 (en) | 2001-07-17 |
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